What are the precautions for the purchase of indoor soundproofing materials?

All materials that can be used to block noise are collectively referred to as sound insulation materials. There are all kinds of sound insulation materials, and the more common ones are solid bricks, reinforced concrete walls, wooden boards, gypsum boards, iron plates, soundproof felt, fiberboard, etc. Strictly speaking, almost all materials have a sound insulation effect, the difference is that the volume of the interval between different materials is different.

For the same material, due to the different areal densities, there is a relatively large change in the sound insulation of the same material. The sound insulation follows the principle of the law of quality, that is, the greater the unit density of the sound insulation material, the greater the sound insulation volume, and the areal density is proportional to the sound insulation volume.

Acoustic insulation materials are physically elastic and excite vibrations to propagate within the compartment when sound waves are incidence. When the sound wave is not perpendicular incidence, but is incident at an angle with the compartment, the sound wave front reaches the surface of the compartment layer sequentially, and the sound wave that first arrives at the compartment excites the bending vibration wave in the compartment to propagate laterally along the compartment, if the bending wave propagation speed is consistent with the travel speed that the sound wave in the air gradually reaches the surface of the compartment, the sound wave strengthens the vibration of the bending wave, and this phenomenon is called the anastomosis effect. At this time, the radiance of the bending wave vibration is particularly large, and the energy of the sound wave radiated to the air on the other side is also very large, thus reducing the sound insulation effect.

Look at the weight: the formula of sound insulation is directly related to the density of the material, so the dense sound insulation is relatively good, and the molded door is relatively light, which is the root cause of the poor sound insulation of the molded door. But pay attention:

Adding soundproof cotton in the middle of a flat hollow door will be more soundproof than a solid wood door. Look at the thickness: the thicker the surface layer, the better the sound insulation effect.

Generally, the surface layer of the wooden door should be 8mm thick. The thickness of the surface layer and the flatness are also better, but the cost will increase. But:

The surface layer of the iron plate fire door is 3mm thick, and the sound insulation effect is also good. Look at the flatness: the flatter the wooden door, the better the combination with the door cover, no matter what the structure.

As long as the deformed wooden door is soundproof, it will definitely not work. Tips for choosing a soundproof door: The soundproofing of a door mainly depends on the quality of the door panel, which mainly depends on the filling of the inner core of the door.

Generally speaking, the inner core of the molded acoustic door is filled with a honeycomb structure of paper base, and the closed air layer it forms can play a good role in sound insulation.

Nowadays, people work in the metropolis, so in order to work more conveniently, they also buy houses in the metropolis, and the rapid development of the metropolis and economic development is also very fast, but it is also an area where there is not enough, that is, the noise is relatively large. So, how much is a square meter of sound insulation material? What soundproofing material is good indoors?

We've got you covered.

How much is a square meter of sound insulation materials.

The quality and thickness of the soundproof wall on the sales market are not the same, and the price is not the same, and the general polyester fiber sound-absorbing board with a thickness of 9mm is 90 yuan per square meter. Each location has a different level of consumption and a different price. Let's take a look at the prices of several different materials and different brands of soundproof walls that I have listed for us.

Sound insulation wall, well-known brand sound insulation wall material, sound insulation wall price (yuan):

Zhurui soundproof wall polyester fiber 42 square meters.

Sindh soundproof wall south rock wool 150 square meters.

Home fan soundproof wall high-density board 55 square meters.

Zhuohong soundproof wall color just 374 square meters.

What soundproofing material is good indoors?

Sound insulation materials are glass fiber wool, rock wool, polyester fiber silencing cotton, glass fiber wool and rock wool are very easy to cause respiratory allergies, it is not recommended to call the lack of spirit, polyester fiber silencing cotton for medium and high frequency sound absorption The actual effect is good, and the digestion and absorption of high-frequency sound is weak. The gradient sound-absorbing cotton in the polyester fiber sound-absorbing cotton is very good, and the actual effect of digestion and absorption of low-frequency, high-frequency, and high-frequency sounds is good, and the sound absorption effect is good.

Indoor sound insulation raw materials 1, glass fiber wool, linen cotton felt, organic chemical textile materials, rock wool, rock wool and its polyethylene plastic foam.

Indoor sound insulation raw materials 2, gypsum board, asbestos concrete, wood-based panels, thick steel plates, aluminum alloy plates and their hard plywood, they are based on the method of resonance attraction, to achieve the effect of blocking sound.

Indoor sound insulation raw materials 3, leather products, plastic film, artificial leather and other raw and loss materials with poor ventilation effect, strong tensile ability and soft materials, according to the natural frequency of the sound can reasonably isolate the sound propagation.

Indoor sound insulation raw materials 4, gypsum board on the paper surface, hard plywood, etc. can fix the section around the periphery, and then connect the closed air behind the board, so as to achieve the actual effect of sound insulation, sound insulation and noise reduction.

5. Indoor sound insulation raw materials, window curtains with unique functions and their indoor space sound-absorbing bodies.

The acoustic principle of the soundproof wall is to leave an inner cavity between the original wall and the soundproof wall, or the buffer layer, so that the noise can be weakened through the indoor space and spacing, and then the noise is converted into heat according to the microorifice plate in the sound-absorbing board, and then further reduced, so the sound insulation and noise reduction can also have the effect of heat insulation. The acoustic principle of the soundproof wall is to leave an inner cavity between the original wall and the soundproof wall, or the buffer layer, so that the noise can be weakened through the indoor space and spacing, and then the noise is converted into heat according to the microorifice plate in the sound-absorbing board, and then further reduced, so the sound insulation and noise reduction can also have the effect of heat insulation.

Noise pollution is also a type of pollution, as modern homes often emit some noise that can cause trouble to neighbors. So in order to eliminate these troubles, how to use sound insulation materials, how to choose indoor sound insulation materials? Let's take a look at the recommendations for indoor soundproofing materials.

Recommended 1. Soundproof felt.

Acoustic blanket is one of the best room soundproofing materials on the market. It is mainly used with gypsum board for wall sound insulation and ceiling sound insulation, and is also used for sound insulation and damping and vibration damping of pipes and mechanical equipment. Acoustic felt is not felt and looks completely different in appearance, felt is light and soft, while acoustic felt is thin and heavy.

Soundproof felt is made of odorless EPDM rubber and more than a dozen kinds of organic minerals refined in a certain proportion, the product is black, environmentally friendly and odorless, a sound insulation material that is quite good for low-frequency and high-frequency sound, can effectively inhibit the spread of various vibrations, the thickness of the material is 1mm, 2mm, 3mm, tested by the State Building Materials Bureau, the weighted volume insulation RW are 23db, 27db, 30db, the flexibility of the material is also very good, can be bent casually, arbitrarily cut the ribbon, Sound insulation material that is very easy to apply and fireproof.

Acoustic felt has the following advantages:

1) The material is light and ultra-thin.

2) Soft and tensile strength.

3) Environmental protection, do not cause pollution to the environment.

4) suppress the propagation of medium and low frequency sound waves; Excellent flame retardant properties.

5) Convenient construction.

Recommend 2. Polyester fiber sound-absorbing panels.

It is an ideal indoor soundproofing material. Its raw material 100% polyester fiber, with sound absorption, environmental protection, flame retardant, heat insulation, heat preservation, moisture-proof, mildew-proof, easy to remove dust, easy to cut, can be parquet, easy construction, good stability, good impact resistance, good independence, cost-effective and other advantages, there are a variety of colors to choose from, can meet the needs of different styles and levels of sound-absorbing decoration. It is mainly used in theaters, halls, museums, exhibition halls, libraries, interrogation rooms, galleries, auction halls, gymnasiums, lecture halls, multi-function halls, hotel lobbies, hospitals, shopping malls, schools, piano rooms, conference rooms, studios, recording studios, KTV private rooms, bars, industrial plants, computer rooms, home noise reduction and other places with high requirements for acoustic environment and high-end decoration.

Recommendation 3: Wave peak sound-absorbing sponge.

The indoor sound insulation material of the crest sound-absorbing sponge is a kind of sponge that has been specially treated by the equipment to form a concave and convex wave shape, which is filled with small voids and semi-open structure, which can absorb a large amount of incoming sound wave energy, attenuate the sound wave, reduce the interference and reverberation of indoor reflected sound, and improve the purity of sound.

1) High sound absorption.

2) Good heat insulation number.

3) Flame retardant grade B1.

4) The structure is compact and the shape is stable.

5) The weight is very light, and the construction is safe and convenient.

6) It is harmless to the human body, no pollution to the environment, and no odor.

7) Water resistance, strong drainage after water immersion, no decrease in sound absorption, and no change in shape.

8) It can be used twice, easy to destroy, and there is no secondary pollution to the environment.

Living in a bustling city, although it is convenient to travel, it is often disturbed by noise. Especially for people who buy houses and live in the city center, the continuous sound of the whistle will seriously affect the normal life of residents, so it is urgent to use soundproof materials in interior decoration. What materials are good for sound insulation, and what points should be seen when choosing sound insulation materials?

If you are interested, you may wish to take a look!

What material is good for sound insulation.

1. Sound-absorbing cotton.

What material is good for sound insulation. The most common is sound-absorbing cotton, which is mainly used in KTV, recording studios, dance halls and other noisy places. Sound-absorbing cotton is easy to process during decoration, and it also has the functions of moisture-proof, waterproof, breathability, etc., but the flame retardancy of sound-absorbing cotton is poor, and it cannot prevent the spread of fire well.

2. Wood wool sound-absorbing panel.

Wood wool sound-absorbing board is also a very popular soundproofing material, which is mainly made of poplar fiber, and the texture of the soundproof board is relatively natural. Compared with sound-absorbing cotton, wood wool sound-absorbing panels have better sound insulation effect, and are usually used in places with high requirements for sound quality, such as ** halls, opera houses and other luxury places.

3. a soundproof panel.

Acoustic insulation panels are also a common soundproofing material, and the soundproofing panels used in different locations are also different, mainly depending on which material is chosen. When choosing sound insulation panels, we must see whether the panels have relevant test reports, so as not to buy inferior sound insulation panels.

4. Soundproof felt.

Acoustic blankets are generally used in combination with gypsum board for the sound insulation of walls and ceilings, as well as for sound insulation and vibration damping of machinery and equipment. But soundproofing felt is not felt, there is a big difference in the appearance of the bark branches, the felt is light and soft, while the soundproof felt is thin but heavy.

There are several points to look at when choosing a soundproofing material.

1. Density. When choosing a sound insulation material, you can first look at its density, which is directly proportional to the sound insulation effect. Therefore, the denser the soundproofing material is chosen, the better the soundproofing effect.

2. Flexibility. Look at whether the sound insulation effect of the sound insulation material is good, and then the elasticity of the material, good elasticity can reduce the vibration of the plate due to sound waves, so as to achieve the effect of sound insulation. The soundproof felt can be cut into strips two or three centimeters wide, and then stretched by hand, and it is easy to return to its original position after release, which means that the material has good elasticity.

3. Toughness. Good sound insulation material not only has good elasticity, but also has toughness, check whether the sound insulation material is tough, you can fold the sound insulation material in half and press hard, good sound insulation material is not easy to break, and there will be no creases and deformation on the surface of the material after loosening.

Quotations: The content of what materials are good for sound insulation and how many points to look for when choosing sound insulation materials is briefly introduced here, I hope you can refer to this information. Sound insulation materials are an indispensable part of decoration, and it is recommended that you can compare them more.

Noise affects people's daily life and work, and can make people feel upset, so what sound insulation materials are available on the market today? What other ways can we insulate our homes to create a quiet and comfortable home? Next, I will give you a brief introduction to the methods of indoor sound insulation and what are the sound insulation materials.

First, the method of indoor sound insulation.

1. Sound insulation of doors and windows.

When we choose windows, we can choose plastic steel window frames, plastic steel materials are thicker, its heat insulation, sound insulation effect is better than aluminum alloy window frames, for window glass, we can choose vacuum glass or double glass, they can achieve a good sound insulation effect; As for the interior door, we can choose the interior door with good sound insulation, such as the sound insulation effect of the double-layer security door.

2. Ground sound insulation.

We can use soft materials for sound insulation, such as cork flooring, the main structure of cork flooring is honeycomb type, it has a lot of sealing airbags, which can play a good role in sound absorption and shockproofing. We can also choose to insulate and reduce noise by laying soundproof carpets in the room, for example.

3. Wall sound insulation.

Because the non-woven wallpaper is heavier and softer, and its surface texture is more, the sound can be continuously weakened, when we choose non-woven wallpaper, it is best to choose a deeper surface concave and convex, and its mute effect will be better, in addition, we can also choose to install sound insulation panels and other ways to achieve the effect of sound insulation and noise reduction.

4. Furniture sound insulation.

Wooden furniture has a good sound absorption effect, because it has a fiber porous structure can effectively reduce noise pollution, of course, different wood its sound absorption effect is also different, for example, wood is not called soft wood furniture its sound absorption effect is better.

2. What are the sound insulation materials?

1. Soundproof felt.

Sound insulation felt is a better sound insulation material on the market today, usually used by us as wall sound insulation, its texture is relatively soft, tensile strength is large, has a good fire protection effect, can effectively isolate low frequency, high frequency sound.

2. Polyester fiber sound-absorbing panel.

Polyester fiber sound-absorbing board is widely used in film and television dramas, recording studios and other places with a relatively high acoustic environment, its sound-absorbing effect is also relatively good, polyester fiber sound-absorbing board also has a number of moisture-proof, heat insulation, flame retardant and other advantages, with a variety of colors, decorative effect is also better.